SEPS-AKA : A Secure Evolved Packet System Authentication and Key Agreement Scheme for LTE - A Networks
Zaher Jabr Haddad, Sanaa Taha, Imane Aly Saroit Ismail · 2014
In this paper, we propose a secure authentication of the Evolved Packet System Authentication and Key Agreement (EPS-AKA) for the LTE-A network.Our scheme is proposed to solve the problem of sending the IMSI as a clear text, and hence prevents the mobility management entity attack.We will use public key (PK) cryptography to protect the transmitted messages, the RSA scheme computation to compute a temporary value to the IMSI, and nonce to generate challenge messages toward the opposite side.Our scheme does not need to change the original framework and the infrastructure of the LTE-A network, although a ciphered IMSI is transmitted.The authentication procedure is performed by the HSS to authenticate the UEs and the MME; therefore, the impersonating of the MME and UEs is not possible.Our evaluation demonstrates that the proposed scheme is secure and achieves the security requirements of the LTE-A subscribers such as privacy, authentication, confidentiality and integrity.In our scheme, we try to maintain the problems defined in the previous related works.